package cn.tedu.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

/**
 * 库名：tedu
 * 表名：userinfo[id,username,password,nickname,age]
 */
public class JDBCDemo1 {
    public static void main(String[] args) throws ClassNotFoundException, SQLException {
        //1,加载数据库驱动
        Class.forName("com.mysql.cj.jdbc.Driver");
        //2，创建数据库连接对象:var+回车
        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?" +
                "characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai" +
                "&rewriteBatchedStatements=true",
                "root",
                "123456"
        );
        //3,创建sql语句执行对象
        Statement statement = connection.createStatement();
        //4,执行sql语句
        Scanner scanner = new Scanner(System.in);
        System.out.println("用户名：");
        String username = scanner.nextLine();
        System.out.println("密码：");
        String password = scanner.nextLine();
        System.out.println("昵称：");
        String nickname = scanner.nextLine();
        System.out.println( "年龄：");
        Integer age = scanner.nextInt();
        //字符串拼接方式执行sql,"+变量名+：，将变量的植嵌入到sql语句里面
        String sql = "insert into userinfo(username,password,nickname,age) " +
                "values('"+username+"','"+password+"','"+nickname+"',"+age+")";
        int i = statement.executeUpdate(sql);
        //5,断开数据库连接
        connection.close();
    }
}
